Finding the Fourth Proportional to 1,316,023.08, 1,816,024.80 and 764,689.90
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Solution
The fourth proportional to 1,316,023.08, 1,816,024.80 and 764,689.90 is: 1,055,221.48
Step by Step Solution
- Step 1: Write the proportion equation
1,316,023.08 : 1,816,024.80 = 764,689.90 : x - Step 2: Convert to fraction form
1,316,023.08/1,816,024.80 = 764,689.90/x - Step 3: Cross multiply
1,316,023.08x = 1,816,024.80 × 764,689.90 - Step 4: Simplify right side
1,316,023.08x = 1,388,695,822,709.52 - Step 5: Solve for x
x = 1,388,695,822,709.52/1,316,023.08 - Step 6: Final answer
x = 1,055,221.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.